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Refactor: Sculpt: Avoid matrix invert for every vertex in cloth brush

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This commit is contained in:
Hans Goudey
2024-07-31 13:14:37 -04:00
parent e15c839a15
commit 30542df576
1 changed files with 5 additions and 6 deletions
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11
source/blender/editors/sculpt_paint/sculpt_cloth.cc
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@@ -628,16 +628,15 @@ static void cloth_brush_solve_collision(Object &object, SimulationData &cloth_si
BVHTreeRayHit hit;
float obmat_inv[4][4];
invert_m4_m4(obmat_inv, object.object_to_world().ptr());
const float4x4 &object_to_world = object.object_to_world();
const float4x4 &world_to_object = object.world_to_object();
LISTBASE_FOREACH (ColliderCache *, collider_cache, cloth_sim.collider_list) {
float ray_start[3], ray_normal[3];
float pos_world_space[3], prev_pos_world_space[3];
mul_v3_m4v3(pos_world_space, object.object_to_world().ptr(), cloth_sim.pos[i]);
mul_v3_m4v3(
prev_pos_world_space, object.object_to_world().ptr(), cloth_sim.last_iteration_pos[i]);
mul_v3_m4v3(pos_world_space, object_to_world.ptr(), cloth_sim.pos[i]);
mul_v3_m4v3(prev_pos_world_space, object_to_world.ptr(), cloth_sim.last_iteration_pos[i]);
sub_v3_v3v3(ray_normal, pos_world_space, prev_pos_world_space);
copy_v3_v3(ray_start, prev_pos_world_space);
hit.index = -1;
@@ -678,7 +677,7 @@ static void cloth_brush_solve_collision(Object &object, SimulationData &cloth_si
copy_v3_v3(cloth_sim.pos[i], hit.co);
add_v3_v3(cloth_sim.pos[i], movement_disp);
add_v3_v3(cloth_sim.pos[i], collision_disp);
mul_v3_m4v3(cloth_sim.pos[i], obmat_inv, cloth_sim.pos[i]);
mul_v3_m4v3(cloth_sim.pos[i], world_to_object.ptr(), cloth_sim.pos[i]);
}
}